﻿/*
BF4Rcon.NET, provides a .NET implementation of BF4's RCON interface.
Copyright (C) 2013 Tim Marro

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using TimScripts.BF4Rcon.Frostbite;

namespace TimScripts.BF4Rcon
{
    public sealed class PlayerCollection : IPlayerCollection
    {
        private const string LoggedOffCommand = "listPlayers";
        private const string LoggedOnCommand = "admin.listPlayers";

        ISynchronousRconClient Client;

        public Player this[int index]
        {
            get
            {
                PlayerInfoBlockPlayerCollection players = GetPlayers();
                Player p;

                try
                {
                    p = players[index];
                }
                catch (ArgumentOutOfRangeException)
                {
                    throw new ArgumentOutOfRangeException("index");
                }

                return p;
            }
        }

        public int Count
        {
            get
            {
                int numPlayers;
                PlayerInfoBlockPlayerCollection players = GetPlayers();

                numPlayers = players.Count;

                return numPlayers;
            }
        }

        public IEnumerator<Player> GetEnumerator()
        {
            IPlayerCollection players = GetPlayers();

            return players.GetEnumerator();
        }

        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
        {
            return GetEnumerator();
        }

        public PlayerCollection(ISynchronousRconClient client)
        {
            Client = client;
        }

        private IList<string> GetPlayerInfoBlock()
        {
            return SendRequest(Client.IsLoggedOn ? LoggedOnCommand : LoggedOffCommand, "all");
        }

        private PlayerInfoBlockPlayerCollection GetPlayers()
        {
            IList<string> data = GetPlayerInfoBlock();
            PlayerInfoBlockPlayerCollection players = new PlayerInfoBlockPlayerCollection(data, 1);

            return players;
        }

        private IList<string> SendRequest(params string[] words)
        {
            return Client.SendRequest(words);
        }
    }
}
